Street-sweeper.



L. ARENT.

STREET SWEEPER.

APPLICATION FILED MAY 21, 1915.

Patented Mar. 28, 1916.

3 SHEETS-SHEET l.

L. ARENT.

STREET SWEEPER.

APPLICATION mw MAY21.1915.

Patented Mar. 28, 1916.

3 SHEETS-SHEET 2.

THE COL uMm\ PLANcanAPH CO., WASmNuTDN, D. C.

@Hozucq L. ABENT. STREET SWEEPER.

APPLICATlON FILED MAYZI, |915.

Patented Mar. 28, 1916.

3 SHEET$'SHEET 3.

'mE COLUMBIA PLANODRAPH co.. WASHINGTON. n. c.

LEoNHAn-n ARENT, or BUFFALO,` NEW YORK.

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Application aiea'May 21, 1915. serial No. 29,523.

Y.Toall whomzt may concern: e

i Be it known that I, LEONHARD" AunNr, a subject of the Czarof Russia, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Street-Sweepers, of

which the following is a specification.

This invention relates to new and useful improvements in street sweepers.

AnA object of the present invention is to provide a street sweeper in which the rear supporting wheels for the sweeper frame constitute the driving means for the sweeper roller with means for raising and lowering the sweeper roller into and out of operating position. l

A further object ofthe invention is to provide a street sweeper in which the supporting wheels-for'the sweeper` frame constitute the driving means for the sweeper `roller with a compartment or trough positioned adjacent the sweeping roller'adapted to receive .the dirt gathered by the roller and to further provide abox-like receptacle pivotally supportedon the rear axle and into which the dirt received' in the trough maybe delivered by workmen ridingin the dirt-receiving compartment.

still further `object is` to provide a street sweeper includingan automatically driven sweepingA roller, in combinationY with a dirtsreceiving compartment` anda movable guide", the vguide.b'ein',g vertically adjustable andlimited in its downward movementV by theadjustingmeans but which may be permitted to rise orbe elevated into proximity with the brush torcompensate for unevenness `of the ground or obstructions thereon.

Withthe aboveobjects in View and others that will appearl as the nature of the invention `is better understood; the same consists the. novel combination andarrangement of parts tobehereina-fter morefully described, illustrated in the accompanying drawings, and set forth inthe `,appended claim.l i

Inthefaccompanying drawings `forming partofthis application andl in which like designating characters. refer to correspondi ing parts throughout the several views z- Figure 1 isf a side." elevational view fof a street sweeper, builtin accordancewith the present invention; Fig. 2 is a top plan vie-wfof the same. Fig. 3 is a longitudinal sectional Specification of vLetters Patent.

shown in Fig. 3.

Patented Mar. 28, 191W.

that a sweeper of extremely light weight and one that will` be inexpensive to manufacture will be obtained. A seat 13 is mounted on Vthe forward platform 11 for the use of the driver. The supporting means for the frame includes front wheels Hand rear wheels 15,

the front wheels having the usual fifth wheel connection 16 to the forward platform 115 and provided withl the usual draft devices l?. A. rear axle 18 i is journaled throughfthe side bars 12 with the supporting wheels 15 spacedT inwardly of the side bars, while one of the wheels is fixed to the axle withthe other one journaled on said axle.

The receptacle into which dirt is finally delivered includes a box-like structure 19 having a fixed bottom wall and fixed side and front walls, with a rear end wall or tail gate 20 pivoted` at its upper end as at` 21 to the-side walls of the receptacle while apin @projecting inwardly from the lower ends of the side walls limits the swinging movement of the end Ygate 9.0L The receptacle 19 ispivotally mounted on the axle 18 by means of angle plates 28, one leg of each angle plate 23 being secured to the bottom wall `of the receptacle 19 adjacent the side edges thereof while the other legs are journaled onthe rear axle 18 as is clearly pivotedof-center to the axle 18 so that the same will have anaturaltendency to swing downwardly at its rear end and in order tohold the same inthe upright position as shownV in Fig. 3, I have provided locking means for the forward end of the receptacle. This locking means "includes a cross bar 9A: positionedtransversely of the side bars 12 and preferably of angle-iron construction as `shown in Fig;` 3,l upon which the forward end .of .the receptacle 19 is adapted to rest.

The receptacle 19 is Y A centrally-positioned pin projects from the bar 24 and is adapted to be engaged by the swinging clasp 25 carried by the front wall of the receptacle 19, thereby to hold the said receptacle in horizontal position.

rlhe sweeping mechanism including the brush roller and the carrier for initially receiving the dirt or sweepings is positioned between the forward platform 11 and the dirt receptacle 19, and is positioned adjacent the ground as illustrated, and includes a receptacle or compartment for receiving the dirt from the sweeper which embodies a front wall 26, side walls 27 and a bottom wall 28, these parts being preferably formed of sheet metal and supported on the side bars 12 by clamping bands 29. A guide adapted to direct the dirt gathered by the brush roller is designated 30 and is hinged to the lower rear edge of the bottom wall 28 of the dirt receptacle as at 31 while the end walls of the guide 30 at all times overlap the side walls 27 as is indicated in Fig. 3 to prevent the dirt from falling from the guide. The means for adjusting the height of the guide with respect to the ground includes arms 32 hinged at their lower ends as at 33 to the guide 30 while their upper ends are provided with a series of spaced openings 34 into which pins 35 are received and these pins being positioned upwardly of the side bars 12 rest thereon and will permit the guide to rise at will but limit the lowering movement thereof. A brush roller 36 is positioned between the rear wheels and the guide 30 and has its ends journaled in the free ends of the links 37, the other ends of the links being pivotally mounted as at 38 between the end walls 27 of the dirt receptacle. and the forward retaining bands 29. It will be noted that the links 37 extend between the end walls 27 and rear retaining bands 29 as is indicated in Fig. 4 which constitute guides for the links.

A shaft 39 is journaled at its ends in bearings 40 supported on the side rails 12 and substantially in vertical alinement with the brush roller 36, with the ends of the shaft extending laterally of the side rails. The axle of the brush roller 36 is connected at its ends to the shaft 39 by ropes or cables 41 connected at oneend to the brush roller and at their other ends to the extended shaft ends 39 upon which the same are wound. A toothed wheel 42 is fixed on each end of the shaft 39 and is adapted to be engaged by a spring-pressed slidingflatch 43`mounted on the side Vrail l2 to hold the gear and shaft in fixed position with the brush roller elevated by the ropes 41 at the desired height. A hand wheel 44 is fixed to the shaft 39 inwardly of the side bars 12 and by which the shaft may be operated to raise and lower the brush roller.

The rear axle 18 constitutes the driving means for the brush roller and has one end thereof projecting laterally of one of the side bars 12 and upon which is fixed a gear wheel 45. Depending arms 46 are carried by the side rails 12 and are spaced forwardly of the front wall 26of the dirt receptacle and have journaled therein a pair of shafts 47 and 48 projecting laterally thereof. A small gear 49 is fixed on one end of the shaft 47 and is driven by the rear axlegear 45 through the medium of the sprocket chain 50. A larger gear 51 is fixed on the shaft 47 inwardly 0f the smaller gear 49 and `is in meshV with a lantern gear 52 fixed on the shaft 48. A small gear 53 is fixed to each extended end of the shaft 48 and has sprocket chains 54 engaging therewith, which sprocket chains also engage gear wheels 55 carried by each end of the brush axle and by which the brush 36 is revolved.

In the operation of the machine, and in the forward movement thereof the rear axle 18 is adapted to drive the sprocket chain 50, which in turn drives the shaft 47, 'and this shaft being connected with the shaft 48 by the gear and lantern wheels 51 and 52 respectively, the said shaftl 48 is adapted to be revolved and communicates rotary motion to the brush roller 36 by the connecting sprocket chain 54. The guide 30 may be raised and lowered by the adjusting means 34 and 35, while the brush roller 36 may be raised and loweredby the elevating mechanism more clearlv shown in Fig. 5 and hereinbefore specifically referred to. The driver of the machine is 4upon the forward platform 11 while a workman is carried in the dirt compartment 26 and dirt received in the compartment'by the brush 36 may be shoveled into the dirt receptacle 19 by the workman. The end gate 20 of the receptacle 19 maybe swung on its pivot 21 I' for purposes of emptying the same. orY the entire receptacle may be `moved on its pivotal connection with the rear axle 18 by re'- leasing the fastening device 25.

From the above detailed description of the machine, it is believed that the opera tion and construction thereof will be readily apparent, and while I have herein shown the preferred embodiment thereof, it is nevertheless to be understood that various y' forms and modifications thereof maybe made without departing from thel spirit and scope of the invention as claimed.

lVhat I claim as new is A street sweeper including a frame having a forward platform and rearwardlyextending side bars, a rear axle journaled at the rear ends of the side bars, supporting wheels for theV axle,"front supporting wheels for the front platform. a dirt repartment, links connected at their lowerV ends to said guide and adjustably connected at their upper ends to the side bars, a pair of links pivoted at `their forward ends to said dirt compartment, a brush roller journaled in the rear ends of said links and po sitioned between the rear supporting Wheels Vmeans for the brush tween the brush and the rear axle.

In testimony whereof I ax my signature. Y LEGNHARD ARENT.

Qopies of this patent may be obtained for Iive cents eaoh, by addressing Vthe Commissioner of Patents.

Washington, D. C."

roller extending be- 

